I finally received my additional copies of Invader on Tuesday 25th November, and the correction to the cover description has been made, as well as has the subtitle been removed. "breaths sigh of relief".
I tried expaining to my publisher how such a thing could greatly affect the sales of a book. Using myself as an example, I would never pick up a novel from a book shelf if it had an error on the description, of all places. At least it's been corrected now and I am pretty sure that this adjustment will improve overall book sales in the following months.